Psalm 141:3-5

Set a watch, O LORD, before my mouth; Keep the door of my lips. Incline not my heart to any evil thing, To practise wicked works with men that work iniquity: And let me not eat of their dainties. Let the righteous smite me; It shall be a kindness: And let him reprove me; It shall be an excellent oil, which shall not break my head: For yet my prayer also shall be in their calamities.